Weather History for Islip, NY

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Tuesday, February 18, 2014

  Actual Average Record
Temperature  
Mean Temperature 29 °F 33 °F  
Max Temperature 41 °F 41 °F 60 °F (2011)
Min Temperature 17 °F 26 °F 15 °F (2006)
Degree Days  
Heating Degree Days 36 32  
Month to date heating degree days 662 595  
Since 1 July heating degree days 3634 3587  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 26 °F    
Average Humidity 68    
Maximum Humidity 89    
Minimum Humidity 46    
Precipitation  
Precipitation 0.46 in 0.12 in 0.93 in (1999)
Month to date precipitation 3.75 1.98  
Year to date precipitation 7.73 5.62  
Snow  
Snow 2.00 in 0.30 in 0.10 in (2004)
Month to date snowfall 23.9 4.5  
Since 1 July snowfall 57.5 17.1  
Snow Depth 9.00 in    
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 7 mph (SE)    
Max Wind Speed 22 mph    
Max Gust Speed 26 mph    
Visibility 6 miles    
Events Fog , Rain , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 18, 2014 Rise Set
Actual Time 6:42 AM EST 5:30 PM EST
Civil Twilight 6:14 AM EST 5:58 PM EST
Nautical Twilight 5:42 AM EST 6:30 PM EST
Astronomical Twilight 5:10 AM EST 7:02 PM EST
Moon 9:23 PM EST (2/18) 8:11 AM EST (2/18)
Length of Visible Light 11h 44m
Length of Day
10h 48m
Waning Gibbous, 87% of the Moon is Illuminated
Feb 18
Waning Gibbous
Feb 22
Last Quarter
Mar 1
New
Mar 8
First Quarter
Mar 16
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 19.0 °F - 6.1 °F 57% 30.34 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 24.1 °F 18.2 °F 7.0 °F 48% 30.30 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
2:56 AM 25.0 °F 20.7 °F 10.0 °F 53% 30.29 in 10.0 mi WSW 3.5 mph - N/A   Overcast
3:56 AM 25.0 °F 19.3 °F 12.0 °F 58% 30.24 in 10.0 mi ENE 4.6 mph - N/A   Scattered Clouds
4:56 AM 26.1 °F 17.6 °F 14.0 °F 60% 30.20 in 10.0 mi East 8.1 mph - N/A   Partly Cloudy
5:56 AM 28.9 °F 25.2 °F 18.0 °F 64% 30.17 in 10.0 mi East 3.5 mph - N/A   Overcast
6:26 AM 35.6 °F 26.6 °F 24.8 °F 65% 30.15 in 2.0 mi SE 13.8 mph 20.7 mph 0.00 in Snow Light Snow
6:52 AM 33.8 °F 25.8 °F 26.6 °F 75% 30.15 in 1.5 mi SE 10.4 mph - 0.00 in Snow Light Snow
6:56 AM 34.0 °F 25.0 °F 26.1 °F 73% 30.16 in 1.5 mi SE 12.7 mph - 0.01 in Snow Light Snow
7:07 AM 33.8 °F 25.3 °F 26.6 °F 75% 30.15 in 0.5 mi SE 11.5 mph - 0.00 in Snow Light Snow
7:12 AM 33.8 °F 25.3 °F 26.6 °F 75% 30.15 in 0.5 mi SE 11.5 mph - 0.00 in Snow Snow
7:36 AM 33.8 °F 27.0 °F 28.4 °F 81% 30.14 in 0.8 mi SE 8.1 mph - 0.02 in Snow Light Snow
7:52 AM 33.8 °F 27.7 °F 30.2 °F 87% 30.14 in 0.8 mi SE 6.9 mph - 0.04 in Snow Light Snow
7:56 AM 34.0 °F 28.0 °F 30.0 °F 85% 30.15 in 0.5 mi SE 6.9 mph - 0.04 in Fog , Snow Light Snow
8:52 AM 33.8 °F 26.4 °F 30.2 °F 87% 30.10 in 0.2 mi ESE 9.2 mph - 0.09 in Fog , Snow Snow
8:56 AM 33.1 °F 25.5 °F 30.0 °F 89% 30.10 in 0.2 mi ESE 9.2 mph - 0.10 in Fog , Snow Snow
9:00 AM 33.8 °F 27.7 °F 30.2 °F 87% 30.09 in 0.5 mi SE 6.9 mph - 0.01 in Fog , Snow Snow
9:32 AM 33.8 °F 25.8 °F 32.0 °F 93% 30.07 in 1.0 mi ESE 10.4 mph - 0.06 in Snow Light Snow
9:56 AM 35.1 °F 27.4 °F 32.0 °F 89% 30.07 in 1.5 mi SE 10.4 mph - 0.11 in Rain , Snow Light Snow
10:56 AM 36.0 °F 29.0 °F 33.1 °F 89% 30.03 in 1.5 mi East 9.2 mph - 0.08 in Rain , Snow Light Rain
11:56 AM 36.0 °F 29.6 °F 35.1 °F 97% 29.96 in 4.0 mi NE 8.1 mph - 0.11 in Rain Light Rain
12:56 PM 37.0 °F 31.0 °F 34.0 °F 89% 29.94 in 10.0 mi NNW 8.1 mph - 0.01 in   Overcast
1:50 PM 39.2 °F 34.2 °F 35.6 °F 87% 29.92 in 10.0 mi NNW 6.9 mph - N/A   Overcast
1:56 PM 37.9 °F 33.5 °F 33.1 °F 83% 29.93 in 10.0 mi NNW 5.8 mph - N/A   Overcast
2:21 PM 37.4 °F 33.8 °F 33.8 °F 87% 29.92 in 10.0 mi North 4.6 mph - N/A   Overcast
2:56 PM 37.9 °F 34.4 °F 33.1 °F 83% 29.93 in 10.0 mi NNW 4.6 mph - N/A   Overcast
3:56 PM 39.0 °F 32.8 °F 30.9 °F 73% 29.95 in 10.0 mi West 9.2 mph 18.4 mph N/A   Mostly Cloudy
4:56 PM 37.9 °F 30.9 °F 28.9 °F 70% 29.96 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
5:56 PM 37.0 °F 28.9 °F 25.0 °F 62% 29.99 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
6:56 PM 36.0 °F 28.0 °F 25.0 °F 64% 30.02 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
7:56 PM 35.1 °F 27.9 °F 24.1 °F 64% 30.05 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
8:56 PM 33.1 °F 26.9 °F 23.0 °F 66% 30.08 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
9:56 PM 30.0 °F - 21.0 °F 69% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:56 PM 28.0 °F 20.8 °F 21.0 °F 75% 30.09 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
11:56 PM 28.0 °F 22.8 °F 21.0 °F 75% 30.09 in 10.0 mi WSW 4.6 mph - N/A   Partly Cloudy